Multi_value_entry_builder_normal Class Reference

The subclass of the multi-value entry builder, for non-INSERT cases, With this class, there should be no need to build separate entries for different values in the same multi-value field. More...

#include <row0row.h>

Inheritance diagram for Multi_value_entry_builder_normal:

Public Member Functions
	Multi_value_entry_builder_normal (const dtuple_t *row, const row_ext_t *ext, dict_index_t *index, mem_heap_t *heap, bool check, bool selected)
	Constructor. More...
Public Member Functions inherited from Multi_value_entry_builder
	Multi_value_entry_builder (dict_index_t *index, dtuple_t *entry, bool selected)
	Constructor. More...
virtual	~Multi_value_entry_builder ()=default
dtuple_t *	begin (uint32_t pos=0)
	Get the first index entry. More...
dtuple_t *	next ()
	Get next index entry based on next multi-value data. More...
uint32_t	last_multi_value_position () const
	Get the position of last generated multi-value data. More...

Private Member Functions
dfield_t *	find_multi_value_field () override
	Find the multi-value field from the passed in entry or row. More...
void	prepare_entry_if_necessary () override
	Prepare the entry when the entry is not passed in. More...
uint32_t	skip () override
	Skip the not selected values and stop m_pos at the next selected one. More...

Private Attributes
const dtuple_t *	m_row
	Based on which complete row to build the index row. More...
const row_ext_t *	m_ext
	Externally stored column prefixes, or nullptr. More...
mem_heap_t *	m_heap
	Memory heap. More...
const bool	m_check
	True if dfield type should be checked, otherwise false. More...

Additional Inherited Members
Protected Member Functions inherited from Multi_value_entry_builder
virtual bool	prepare_multi_value_field ()
	Prepare the corresponding multi-value field from the row. More...
Protected Attributes inherited from Multi_value_entry_builder
dict_index_t *	m_index
	Based on which index to build the entry. More...
const bool	m_selected
	True if only the selected(bitmap set) multi-value data would be used to build the entries, otherwise false. More...
dtuple_t *	m_entry
	Entry built for the index. More...
uint32_t	m_pos
	Multi-value data position. More...
const multi_value_data *	m_mv_data
	Multi-value data. More...
uint32_t	m_mv_field_no
	Field number of multi-value data on the index. More...

Detailed Description

The subclass of the multi-value entry builder, for non-INSERT cases, With this class, there should be no need to build separate entries for different values in the same multi-value field.

Constructor & Destructor Documentation

Multi_value_entry_builder_normal()

Multi_value_entry_builder_normal::Multi_value_entry_builder_normal ( const dtuple_t *  row, const row_ext_t *  ext, dict_index_t *  index, mem_heap_t *  heap, bool  check, bool  selected  )

inline

Constructor.

Parameters

[in]	row	based on which complete row to build the index row
[in]	ext	externally stored column prefixes of the row
[in,out]	index	multi-value index
[in,out]	heap	memory heap
[in]	check	true if type can be checked, otherwise skip checking
[in]	selected	true if only the selected(bitmap set) multi-value data would be used to build the entries, otherwise false.

Member Function Documentation

find_multi_value_field()

dfield_t * Multi_value_entry_builder_normal::find_multi_value_field ( )

overrideprivatevirtual

Find the multi-value field from the passed in entry or row.

m_mv_field_no should be set once the multi-value field found.

Returns

the multi-value field pointer, or nullptr if not found

Implements Multi_value_entry_builder.

prepare_entry_if_necessary()

void Multi_value_entry_builder_normal::prepare_entry_if_necessary ( )

inlineoverrideprivatevirtual

Prepare the entry when the entry is not passed in.

Reimplemented from Multi_value_entry_builder.

skip()

uint32_t Multi_value_entry_builder_normal::skip ( )

inlineoverrideprivatevirtual

Skip the not selected values and stop m_pos at the next selected one.

Returns

the next valid value position, or size of m_mv_data to indicate there is no more valid value

Reimplemented from Multi_value_entry_builder.

Member Data Documentation

m_check

const bool Multi_value_entry_builder_normal::m_check

private

True if dfield type should be checked, otherwise false.

m_ext

const row_ext_t* Multi_value_entry_builder_normal::m_ext

private

Externally stored column prefixes, or nullptr.

m_heap

mem_heap_t* Multi_value_entry_builder_normal::m_heap

private

Memory heap.

m_row

const dtuple_t* Multi_value_entry_builder_normal::m_row

private

Based on which complete row to build the index row.

---

The documentation for this class was generated from the following files:

• storage/innobase/include/row0row.h
• storage/innobase/row/row0row.cc